Blood and Plasma Collection For Use in Future Clinical Trials

There is a concern that the influenza virus will become resistant to the standard of care, oseltamivir (commonly known as Tamiflu), as resistance to this medication has been observed in people infected with the seasonal influenza virus. Because of the possibility of drug resistance, additional treatment options for influenza are needed. The purpose of this study is to collect blood from people who have recovered from influenza or who have received a seasonal influenza vaccine. The blood will then be processed into Food and Drug Administration (FDA)-licensed fresh frozen plasma (FFP). In a future clinical trial, this plasma will be used as a treatment for people hospitalized with influenza. This study will enroll people who have recovered from influenza or received a seasonal influenza vaccine. Participants will donate blood at FDA-licensed blood donor centers up to three times during the 240-day study period.